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6ae4308116
Rename first parameter in io_pin_pages from ubuf to uaddr for consistency between declaration and implementation. Signed-off-by: Long Li <leo.lilong@huawei.com> Link: https://lore.kernel.org/r/20250509063015.3799255-1-leo.lilong@huaweicloud.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
#ifndef IO_URING_MEMMAP_H
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#define IO_URING_MEMMAP_H
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#define IORING_MAP_OFF_PARAM_REGION 0x20000000ULL
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#define IORING_MAP_OFF_ZCRX_REGION 0x30000000ULL
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#define IORING_OFF_ZCRX_SHIFT 16
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struct page **io_pin_pages(unsigned long uaddr, unsigned long len, int *npages);
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#ifndef CONFIG_MMU
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unsigned int io_uring_nommu_mmap_capabilities(struct file *file);
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#endif
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unsigned long io_uring_get_unmapped_area(struct file *file, unsigned long addr,
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unsigned long len, unsigned long pgoff,
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unsigned long flags);
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int io_uring_mmap(struct file *file, struct vm_area_struct *vma);
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void io_free_region(struct io_ring_ctx *ctx, struct io_mapped_region *mr);
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int io_create_region(struct io_ring_ctx *ctx, struct io_mapped_region *mr,
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struct io_uring_region_desc *reg,
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unsigned long mmap_offset);
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int io_create_region_mmap_safe(struct io_ring_ctx *ctx,
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struct io_mapped_region *mr,
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struct io_uring_region_desc *reg,
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unsigned long mmap_offset);
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static inline void *io_region_get_ptr(struct io_mapped_region *mr)
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{
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return mr->ptr;
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}
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static inline bool io_region_is_set(struct io_mapped_region *mr)
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{
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return !!mr->nr_pages;
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}
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#endif
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